Peripheral device of programmable logic controller
US8060221B2 · kind B2 · utility
7Cited by
11References
5Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 13, 2006 |
| Grant date | Nov 15, 2011 |
| Priority date | — |
| Expiry date | Oct 20, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/13037
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A tracing-result optimization processing unit generates an optimized tracing result. A tracing-result collation processing unit collates the optimized tracing result and a time chart as a basis of a sequence processing for an external apparatus and detects shift of the optimized tracing result. A tracing-result storing unit accumulates and stores therein a tracing result obtained by a programmable logic controller at predetermined time intervals. Every time the tracing result is stored in the tracing-result storing unit, the tracing-result optimization processing unit generates the optimized tracing result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.